package main

import (
	"fmt"
	"strconv"
)

func intToStr(i int) string { return strconv.Itoa(i) }

func main() {
	var a, b int
	fmt.Scan(&a, &b)

	ok := func(i int) bool {
		if i%3 == 0 {
			return true
		}
		s := intToStr(i)
		for i := range s {
			if s[i] == '3' {
				return true
			}
		}
		return false
	}
	for i := a; i <= b; i++ {
		if ok(i) {
			fmt.Println(i)
		}
	}
}